forked from thoughtbot/paperclip
/
geometry_test.rb
177 lines (148 loc) · 6.05 KB
/
geometry_test.rb
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require 'test/helper'
class GeometryTest < Test::Unit::TestCase
context "Paperclip::Geometry" do
should "correctly report its given dimensions" do
assert @geo = Paperclip::Geometry.new(1024, 768)
assert_equal 1024, @geo.width
assert_equal 768, @geo.height
end
should "set height to 0 if height dimension is missing" do
assert @geo = Paperclip::Geometry.new(1024)
assert_equal 1024, @geo.width
assert_equal 0, @geo.height
end
should "set width to 0 if width dimension is missing" do
assert @geo = Paperclip::Geometry.new(nil, 768)
assert_equal 0, @geo.width
assert_equal 768, @geo.height
end
should "be generated from a WxH-formatted string" do
assert @geo = Paperclip::Geometry.parse("800x600")
assert_equal 800, @geo.width
assert_equal 600, @geo.height
end
should "be generated from a xH-formatted string" do
assert @geo = Paperclip::Geometry.parse("x600")
assert_equal 0, @geo.width
assert_equal 600, @geo.height
end
should "be generated from a Wx-formatted string" do
assert @geo = Paperclip::Geometry.parse("800x")
assert_equal 800, @geo.width
assert_equal 0, @geo.height
end
should "be generated from a W-formatted string" do
assert @geo = Paperclip::Geometry.parse("800")
assert_equal 800, @geo.width
assert_equal 0, @geo.height
end
should "ensure the modifier is nil if not present" do
assert @geo = Paperclip::Geometry.parse("123x456")
assert_nil @geo.modifier
end
should "treat x and X the same in geometries" do
@lower = Paperclip::Geometry.parse("123x456")
@upper = Paperclip::Geometry.parse("123X456")
assert_equal 123, @lower.width
assert_equal 123, @upper.width
assert_equal 456, @lower.height
assert_equal 456, @upper.height
end
['>', '<', '#', '@', '%', '^', '!', nil].each do |mod|
should "ensure the modifier #{mod.inspect} is preserved" do
assert @geo = Paperclip::Geometry.parse("123x456#{mod}")
assert_equal mod, @geo.modifier
assert_equal "123x456#{mod}", @geo.to_s
end
end
['>', '<', '#', '@', '%', '^', '!', nil].each do |mod|
should "ensure the modifier #{mod.inspect} is preserved with no height" do
assert @geo = Paperclip::Geometry.parse("123x#{mod}")
assert_equal mod, @geo.modifier
assert_equal "123#{mod}", @geo.to_s
end
end
should "make sure the modifier gets passed during transformation_to" do
assert @src = Paperclip::Geometry.parse("123x456")
assert @dst = Paperclip::Geometry.parse("123x456>")
assert_equal ["123x456>", nil], @src.transformation_to(@dst)
end
should "generate correct ImageMagick formatting string for W-formatted string" do
assert @geo = Paperclip::Geometry.parse("800")
assert_equal "800", @geo.to_s
end
should "generate correct ImageMagick formatting string for Wx-formatted string" do
assert @geo = Paperclip::Geometry.parse("800x")
assert_equal "800", @geo.to_s
end
should "generate correct ImageMagick formatting string for xH-formatted string" do
assert @geo = Paperclip::Geometry.parse("x600")
assert_equal "x600", @geo.to_s
end
should "generate correct ImageMagick formatting string for WxH-formatted string" do
assert @geo = Paperclip::Geometry.parse("800x600")
assert_equal "800x600", @geo.to_s
end
should "be generated from a file" do
file = File.join(File.dirname(__FILE__), "fixtures", "5k.png")
file = File.new(file, 'rb')
assert_nothing_raised{ @geo = Paperclip::Geometry.from_file(file) }
assert @geo.height > 0
assert @geo.width > 0
end
should "be generated from a file path" do
file = File.join(File.dirname(__FILE__), "fixtures", "5k.png")
assert_nothing_raised{ @geo = Paperclip::Geometry.from_file(file) }
assert @geo.height > 0
assert @geo.width > 0
end
should "not generate from a bad file" do
file = "/home/This File Does Not Exist.omg"
assert_raise(Paperclip::NotIdentifiedByImageMagickError){ @geo = Paperclip::Geometry.from_file(file) }
end
[['vertical', 900, 1440, true, false, false, 1440, 900, 0.625],
['horizontal', 1024, 768, false, true, false, 1024, 768, 1.3333],
['square', 100, 100, false, false, true, 100, 100, 1]].each do |args|
context "performing calculations on a #{args[0]} viewport" do
setup do
@geo = Paperclip::Geometry.new(args[1], args[2])
end
should "#{args[3] ? "" : "not"} be vertical" do
assert_equal args[3], @geo.vertical?
end
should "#{args[4] ? "" : "not"} be horizontal" do
assert_equal args[4], @geo.horizontal?
end
should "#{args[5] ? "" : "not"} be square" do
assert_equal args[5], @geo.square?
end
should "report that #{args[6]} is the larger dimension" do
assert_equal args[6], @geo.larger
end
should "report that #{args[7]} is the smaller dimension" do
assert_equal args[7], @geo.smaller
end
should "have an aspect ratio of #{args[8]}" do
assert_in_delta args[8], @geo.aspect, 0.0001
end
end
end
[[ [1000, 100], [64, 64], "x64", "64x64+288+0" ],
[ [100, 1000], [50, 950], "x950", "50x950+22+0" ],
[ [100, 1000], [50, 25], "50x", "50x25+0+237" ]]. each do |args|
context "of #{args[0].inspect} and given a Geometry #{args[1].inspect} and sent transform_to" do
setup do
@geo = Paperclip::Geometry.new(*args[0])
@dst = Paperclip::Geometry.new(*args[1])
@scale, @crop = @geo.transformation_to @dst, true
end
should "be able to return the correct scaling transformation geometry #{args[2]}" do
assert_equal args[2], @scale
end
should "be able to return the correct crop transformation geometry #{args[3]}" do
assert_equal args[3], @crop
end
end
end
end
end